Disks larger than 16 TB mounted in linux

Source: Internet
Author: User

Hard Disk Partitions include mbr and gpt (gpt is an extension of MBR partition) to support larger disk partitions.

The GPT format is required for Disk Partitions larger than 2 TB.

In windows, diskpart supports disk partition conversion. You can use diskpart/s convert gpt.

In linux, The fdisk command is used for partitioning, and only disks smaller than 2 TB can be used. For disks larger than 2 TB, use

Parted partition. Use of parted partitions

Align-check type n check partition N for TYPE (min | opt) alignment

Check NUMBER do a simple check on the file system

Cp [FROM-DEVICE] FROM-number to-NUMBER copy file system to another partition

Help [COMMAND] print general help, or help on COMMAND

Mklabel, mktable LABEL-TYPE create a new disklabel (partition table)

Mkfs NUMBER FS-TYPE make a FS-TYPE file system on partition NUMBER

Mkpart PART-TYPE [FS-TYPE] start end make a partition

Mkpartfs PART-TYPE FS-TYPE start end make a partition with a file system

Move number start end move partition NUMBER

Name number name partition NUMBER as name

Print [devices | free | list, all | NUMBER] display the partition table, available devices, free space, all found partitions, or a participant partition

Quit exit program

Rescue start end rescue a lost partition near START and END

Resize number start end resize partition NUMBER and its file system

Rm NUMBER delete partition NUMBER

Select DEVICE choose the device to edit

Set number flag state change the FLAG on partition NUMBER

Toggle [NUMBER [FLAG] toggle the state of FLAG on partition NUMBER

Unit UNIT set the default unit to UNIT

Version display the version number and copyright information of GNU Parted

The select command selects Block devices.

Mklabel is used to set the disk partition table Type MBR or GPT)

Mkpart is created

Generally, when a block device is smaller than 16 TB, mkpartfs can be used to create a partition and a file system can be created. However, for Block devices larger than 16 TB. You cannot directly create a file system.

Too big to be expressed in 32 bits using a blocksize of 4096.


Add/etc/mke2fs. conf

[Fs_types] ext4 = {
Features = has_journal, extent, huge_file, flex_bg, uninit_bg, dir_nlink, extra_isize
Auto_64-bit_support = 1 # Here add
Inode_size = 256

Then download e2fsprogs

Git clone git: // git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git

After compilation and installation, run the following command to create a file system on the block device.

./Mke2fs-O 64bit, has_journal, extents, huge_file, flex_bg, uninit_bg, dir_nlink, extra_isize-I 4194304 Block devices

Fsck. ext4-f/dev/sdx

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